Baffle plate for boiler flues



Jan; 4, 1927. '1,612,931'

F. J. LocHEN BAFFLE PLATE Foa BOIL'R FLUEs original Filed sept. 11, 1925 Ewa/yabb y v. if

Patented Jan. 4, 1927.

FRANK J. LocHnN, or enfonce, ILLrnors.

IBAFFLE PLATE FOR BCILER FLUES.

Original application led September 11, 1925, Serial No. 55,644; Divided and this application filed January y21, 1926.

This application is a division of my application Serial Number 55,6445.

This invent-ion relates to improvements in baffle plates adapted to be removably inserted in the fiues of boilers for interrupting the flow of hot gases therethrough and for dis tributing the gases in the flue so that all of the available heat units will be distributed throughout the heating surfaces of the fines thereby increasing the heating eiiiciency of the boiler with a material reduction in fuel consumption.

It has been found that as the heated gases pass rthrough the flue, and especially in oil burning furnaces and coal burning boilers that have been converted into oil burning boilers, the heating units in their passage through the flue do not all contact with the heating surfaces with the result that a great amount of heat is lost and passes out of the stack.

The heated gases have a free passage through the fiue and only some of them hug some of the surfaces of the flues while other portions of the flue surfaces are not contacted by the heated gases.

It is one of the objects of the present invention to provide improved baiiies which are separate from and independent of the fiues and are adapted to be inserted into the flues to interrupt the flow of the heated gases therein and to cause the gases to flow in a tortuous passage so that all of the surfaces of the flues will be contacted by the hot gases and thereby utilize all of the'heat units in the gases and prevent them from escaping from the flue.

A further object is to provide improved baiiies of this character which may be readily inserted into the iiues of boilers now on the market without in any manner altering the construction of such boilers and which will effectively break up the gases and distribute -them throughout the entire area of the flue and at the same time the baffles may be read ily removed from the flue. p

A further object is to provide improved baiiies of this character which will provide a minimum amount of contacting surface with the wall of the iiue into which they are inserted. i

To the attainment of these ends and the accomplishment of other new and useful objects as will appear the invent-ion consists in the features of novelty vin substantially Serial No. 82.746.

invention and in which,

Figure 1 is a diagrammatic view partly 1n elevation, partly in section, and partly broken away, of a round form vof boiler having baffles constructedr in accordance with the principles of this invention arranged in the flues.

Figure 2' is a detail horizontal sectional view taken on line 2 2 Figure 1 andA with one of the baflie members or elements omitted.

vFigure 3 is a detail perspective View of a portion of the supporting member for the baffles.

Figure 4 is a detail perspective view of one of the baflie members or elements.

Referring more particularly to the drawings the numeral designates generally a boiler of any construction and configuration havingflues 11 and 12 which are connected by means of a flue 13. A iiue 14 forms communication between the boiler'lO and the flue 11.

The baiiie is of a knock down or sectional construction and embodies ar supporting base 15 of any 4desired size and configuration and is provided with grooves 16 opening through the upper face thereof yand inclined to the horizontal aXis of the support.

l The support is'preferably provided with reduced portionsl to form feet to reduce the contact surface thereof with the wall of the flue.

A plurality of baflies 18 are inserted into the grooves by one edge and will be held by the grooves in inclined positions with respect tothe support 15; They will be spaced from each other in directions lengthwise of the support.

The support is provided with openings 1.9 therethrough sothat the heated gases will flow between the baffle members 18 and also through the support 15. y

The support 15 is placed in a flue 11, so

that the baffle members 18 will incline in a Y direction opposed to the direction of flow of the heated gases through the flue and the baiiie members are of such a length that they will extend substantiallyY across the flue, the extremities of the baffle members being deiiected forwardly as at 20 in directions op- .other end of the series of baHles for directing the gases against the top of the Hue.

The battle members 18 in the Hue 12, are arranged to incline in a direction opposed to the direction of inclination of the baille members in the Hue 11.

Closures 21 are provided for the Hues 11 and 12 and are adapted to be opened to facilitate the insertion and removal of the battle elements.

With this invention it will be manifest that the hot gases will be interrupted in their passageJ through the Hues and will be directed against the walls of the Hue, at the same time they will How in a tortuous passage through the Hues with the result that all the heating units will be utilized and the stack heat will be reduced to a minimum with the further result that the efficiency of the boiler will be increased and the fuel consumption materially reduced, at the same time the bafHes may be readily inserted in the Hue and as readily removed therefrom.

Obviously these bafHe elements may be employed in the Hues in any form or type of boilers or boiler construction.

Vhile the preferred form of the invention has been herein shown and described it is to be understood that various changes may be made in the details of construction and in the combination and arrangement of the several parts within the scope of the claims without departing from the spirit of this invention.

What is claimed as new is:

1. In combination, a Hue, a removable support within the Hue, and a plurality of baille elements carried by and each supported by its lower edge by the said support said baille elements being freely detachable from the support.

2. In combination, a Hue, a removable support within the Hue, and a seriesl of baffle elements carried by and each supported by its lower edge by the support, said elements being inclined and increasing in height from one end to the other end of the series.

3. In combination, a Hue, a removable support within the Hue, and a plurality of baffle elements carried by the support, said elements being inclined, the extremities of the said elements being deHected rearwardly and in a direction opposed to the direction of inclination of the elements with respect to the support.

4f. In combination, a Hue, a removable support within the' Hue, and a plurality of baille elements carried by the support for free removal therefrom and tern'iinating short of the top of the Hue, the said elements being spaced from each other, there being openings through the support whereby heated gases will How between and across the tops and bottoms of the said elements.

5. In combination, a flue, a removable support within the Hue, a plurality of baille elements carried by and being separate from the support and terminating shortof the top of the Hue, the said elements being spaced from each other, there being openings through the support whereby heated gases will How between and across the tops and bottoms of the said elements, the said elements being inclined in a direction opposed to the direction of How of the heated gases through the Hue.

G. In combination, a Hue, ai removable support within the Hue, and baffle elements mounted upon the support and spaced from each other, each of the bafHes being freely removable from the support independent of the others.

7. In combination, a Hue, a removable support within the Hue, and baflie elements mounted upon and each supported by its lower edge by the said support said baffles being freely and independently mounted upon the support and spaced from each other, said elements being spaced from the top and bottom of the flue and` being inclined in a direction opposed to the direc- ;iion of How of the heated gases through the 8. In-combination, a- Hue, a removable support within the Hue, and baffle elements removably mounted upon the support and spaced from each other, said elements being spaced from the top and bottom of the flue and being inclined in a direction opposed to the direction of the How of heated gases through the Hue, there being openings through the support for the passage of the heated gases therethrough.

9. In combination, a Hue, a removable support within the Hue, a plurality of baiile elements carried by the support and adapted for independent removal from the support,

the extremities of the baliles being deflected forwardly beyond the body portion of the baille and in the same general direction as the flow of the products of combustion through the Hue each of the baffles being removable from the said support independent of the other bales.

10. In combination, a Hue, a series of inclined bafHes removably supported in the Hue, the extremities of each of the baffles being in alinement and deflected forwardly beyond the body portion of the respective baflles to form passages between said eX- tremities and the adjacent portions of the wall of the Hue.

11. In combination, a flue, a plurality of alined inclined baffles spaced from each other and inclining in a direction opposed to the direction of the flow of products of e combustion through the flue, the extremities oi' the ba'iies being detached from the flue and deflected forwardly beyond the body portion of the respective baies and in directions in opposition to the direction of inclination of the baffles.

In testimony whereof I have signed my name to this speciication, on this 19th day of January, A. D. 1926.

FRANK J. LOCHEN. 

